Clamp for antiskid devices



March 10, 1925- 1,529,558

w. F. STAGGERS CLAMP FOR ANTISKID DEVICES Filed Jan. 9, 1924 gme'ntoaM'Zliazn EJZ'agyer-S I Patented Mar. 10, 1925.

WILLIAM F. STAGGERS, OF MAIl'NINGTON. WEST VIRGINIA.

CLAMP non mxsxm DEVICES.

Application filed January 9, 1924. Serial No. 685,254.

To all whom it may concern:

Be it known that I, \VILLIAM F. Smccrus, a citizen of United States,residing at Mannington, in the county of Marion and State of lVestVirginia, have invented certain new and useful Improvements in Clampsfor Antiskid Devices, of which the following is a. full, clear, andexact description.

The invention relates particularly to clamps for anti-skid devices, andone of the objects of this invention is to provide such a clamp thatwill function to quickly and easily draw the antiskid device tightlyabout the tire.

Another object of the invention is to provide a clamp so constructedthat when the parts are moved to clamping position the hook member willmove past its dead center, so that the strain exerted on the clamp willnot move the parts to unclamped position.

Another object of the invention is to provide a novel means for lockingthe parts in clamped position.

Still another object of the invention is to provide a device of thischaracter which is simple in construction and hence inexpensive inmanufacture, and yet which is highly eflicie'nt in operation.

Other objects and advantages of the invention will be apparent from thefollowing detailed description, when taken in connection with theaccompanying drawings, in which,

Figure 1 is a plan view of an antiskidding device particularly adaptedfor light automobiles, and showing the clamping member attached thereto.v

Figure 2 is a similar view of an antiskiddiug device particularlyadapted for heavy automobiles, such as commercial trucks.

Figure 3 is a side elevation of the clamp in open position.

Flgure 4: is a front elevation of the clamp in closed position.

Figure 5 is a side elevation of the clamp in closed position; and

Figure 6 is a sectional view of the clamp taken on line 6--6 of Figure5, and showing the relation the cotter pin bears to the hook member andforks of the bell-crank lever.

Referring to the drawings more in detail, numeral 1 indicates generallyan antiskid device of well known form, and provided with loops 2, 2,adapted to receive the quick detachable hooks 3, 3. A chain 4 isconnected to one of these hooks, and attached to the other hook is aclamping member indicated generally by numeral 5.

The antiskid device ma be of any form desired, and the purpose 0 Figure1 is mere- 1y to illustrate my improved clamping member as applied to anantiskidding device particularly adapted for use on light automobiles,such as touring cars.

In Figure 2, I have illustrated another form of antiskidding deviceparticularly adapted to use on heavy automobiles such as commercialtrucks. The type of antiskidding device illustrated in Figure 2 consistsof a. pair of chains 6, 6 which are attached to looped end members 7, 7.tachable hooks 3, 3, are attached to the looped end members 7, .7, inthe same man ner as in Figure 1, and my improved form of clamping member5 is adapted to engage one of the detachable hooks 3, also in thesamemanner as in Figure 1.

The present invention relates solely to the improved clamping memberwhich may be used with all types of antiskid devices, and while I haveillustrated the clamp in connection with two particular forms ofantiskid devices, one for light automobiles, and one for heavy trucks,it will be understood that such showing is for purposes of illustrationonly and that the invention is limited to the particular antiskiddevices shown herein.

The improved clamping member which forms the subject-matter of thepresent application, will now be described.

The clamping member 5 consists of a body member composed of two spacedwalls 8, 8, between which is pivotally mounted a bellcrank lever 9,having an operating handle 10. This bell-crank lever is formed of asingle piece and consists of two spaced forks or tines, 11, 11, whichmerge into the handle portion 10, as clearly illustrated in Figures 1and 4.

Pivotally mounted between the forks or tines 11, 11, is the hook member12, which is provided with an aperture 13 adapted to receive a cotterpin 14, in the manner and for the purpose to be described. I

A pivoted loop 15 is provided on the clamping member for the purpose ofattachin no way The quick deing it to the chains or links carried by theantiskid device. The operation of the clamping member will now bedescribed.

Referring particularly to Figure 3, which leased position.

shows the clamping device in open or inoperatve position,'the loop 15 isattached to one part of the attaching chain and the hook 12 is attachedto another part thereof. Now to draw the parts tightly about the tire itis only necessary to move the operating handle 10 downwardly to theposition illustrated in Figures 4 and 5. As the operating'handle ismoved downwardly the oppo- Site end of the bell-crank lever is elevated,thereby drawing all the parts tightly together. As the parts move intooperative position, vated, moves past its dead center into its positionbetween the forks or tines 11, 11, and the parts are now in such aposition that the strain will not move the clamp to relVhen in thisposition the aperture 13 is exposed and the parts may be securely lockedby placing a cotter pin in the aperture.

To release the parts it is only necessary to remove the cotter pin andswing the operating handle to the position shown in Figure 3, therebyremoving the strain on the parts and permitting the removal of theantiskid device.

In accordance with the patent statutes, I

have described what I now believe to be the best embodiment of theinvention, but I do not wish to be understood thereby as limiting myselfor the scope of the invention, as many changes and modifications may bemadewithout departing from the spirit of invention; all such I aim toinclude in the scope of the appended claims.

Having fully described the invention, what I claim as new and desire tosecure by Letters Patent is:

1. A clamping member for antiskid devices, including a body memberhaving spaced walls, a forked bell-crank lever pivotally mounted in thebody member between the spaced walls thereof, the operating arm of thebell-crank lever extending between the walls of the body member when theclamp is open, the other arm of said bellerank lever extending outwardlyand hav ing a hook member pivotally attached thereto, and means forswinging the operating arm of the bell-crank lever clear of the bodymember and at the same time swinging the other arm of the bell-cranklever into position in the body member and thereby tightening the chain.

2. A clamping member for antiskid dc the hook 12 which has beenel-evices, including a body member having spaced walls, a forkedbell-crank lever pi-votally mounted in the body member between thespaced walls thereof, the operating arm of the bell-crank leverextending between the walls of the body member when the clamp is open,the other arm of said bellcrank extending outwardly and having a hookmember pivotally attached thereto, means for swinging the operating armof the bell-crank lever clear of the body member and at the same timeswinging the other arm of the bell-crank lever into position in the bodymember and thereby tightening the chain, and means for swinging the hookmember past its dead center into position between the fork member of thebell-crank lever. I l

3. A clamping member for antiskid devices, including a body memberhaving spaced walls, a forked bell-crank member pivotally mounted in thebody member between the spaced walls thereof, the operating arm of thebell-crank lever extending, between the walls of the body member whenthe clamp is open, the other arm of said bell-crank extending outwardlyand having a hook member pivotally attached thereto, means for swingingthe operating arm of the bell-crank lever clear of the body member andat the same time swinging the other arm of the bell-crank into positionin the body member and thereby tightening the chain, and means forswinging the hook member past its dead center into position between theforked members of the bell-crank lever, and means for locking the partsin clamped position.

4. A clamping member for antiskid devices, ineluding a body member, aforked bell-crank lever pivotally mounted in the body member, ahook-member pivotally attached to the bell-crank lever, means foroperating the bell-crank lever to draw up the hook member and thustightening the antiskidding device upon the tire, and for swinging thehook member past its dead center into position between the fork membersof the bell-crank lever, said hook member provided with an aperture,said aper ture being positioned beyond the bell-crank forks when thedevice is in clamped position, and a cotter pin adapted to be insertedin said aperture'and abut against the edges of the bell-crank forks.

WILLIAM F. STAGGERS.

III

